SERVER-31400 Record netstat metrics in ftdc

1 files changed, 15 insertions, 0 deletions

diff --git a/src/mongo/db/ftdc/ftdc_system_stats_linux.cpp b/src/mongo/db/ftdc/ftdc_system_stats_linux.cpp
index 316afde8170..1a940eef0d9 100644
--- a/src/mongo/db/ftdc/ftdc_system_stats_linux.cpp
+++ b/src/mongo/db/ftdc/ftdc_system_stats_linux.cpp
@@ -66,6 +66,10 @@ static const std::vector<StringData> kMemKeys{
     "Inactive(file)"_sd,
 };
 
+static const std::vector<StringData> kNetstatKeys{
+    "Tcp:"_sd, "Ip:"_sd, "TcpExt:"_sd, "IpExt:"_sd,
+};
+
 /**
  *  Collect metrics from the Linux /proc file system.
  */
@@ -99,6 +103,17 @@ public:
             subObjBuilder.doneFast();
         }
 
+        {
+            BSONObjBuilder subObjBuilder(builder.subobjStart("netstat"_sd));
+            processStatusErrors(procparser::parseProcNetstatFile(
+                                    kNetstatKeys, "/proc/net/netstat"_sd, &subObjBuilder),
+                                &subObjBuilder);
+            processStatusErrors(
+                procparser::parseProcNetstatFile(kNetstatKeys, "/proc/net/snmp"_sd, &subObjBuilder),
+                &subObjBuilder);
+            subObjBuilder.doneFast();
+        }
+
         // Skip the disks section if we could not find any disks.
         // This can happen when we do not have permission to /sys/block for instance.
         if (!_disksStringData.empty()) {